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Chemistry, 23.10.2021 07:30 layla07

Anion Y − có cấu hình electron: 1s22s22p63s23p6. Trong bảng tuần hoàn Y thuộc ( giải thích) A. chu kì 3, nhóm VIIA. B. chu kì 3, nhóm VIA.

C. chu kì 3, nhóm VIIIA. D. chu kì 4, nhóm IA.

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Anion Y − có cấu hình electron: 1s22s22p63s23p6. Trong bảng tuần hoàn Y thuộc ( giải thích) A. chu...

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